Stevens Institute of Technology

Shock structures and post-impact jetting in hypervelocity droplet impingement

Abstract The shock dynamics resulting from high-speed droplet impingement on a rigid surface are investigated employing high-resolution schlieren imaging and numerical simulations based on the five-equation model. A key finding is that, in contrast to the common emphasis on jetti...

Distribution, temporal variation, and treatment of per- and polyfluoroalkyl substances (PFAS) in urban stormwater runoff

Per- and polyfluoroalkyl substances (PFAS) are emerging contaminants known for their persistence and potential health risks. Stormwater runoff serves as a major pathway for contaminant transport into aquatic ecosystems, yet data on the occurrence, distribution, and transport of P...

Who benefits from demand flexibility? A sociotechnical modeling framework for technology portfolios and outcomes in Los Angeles

Residential decarbonization increasingly relies on households to reduce electricity use and provide grid flexibility. These transitions can also create household benefits through lower electricity consumption. Yet households differ sharply in their ability to adopt the technologi...

A Complex‐Frequency Framework for Kerker Unidirectionality in Photonic Resonators

ABSTRACT Electromagnetic scattering exhibits various anomalous behaviors, such as forward or backward scattering effects known as the Kerker conditions. These anomalies appear in non‐Hermitian photonic resonators and are mathematically described by operators with complex eigenfre...

Gaze and Facial Expression‐Based Multimodal Network for Depression Assessment in Young Adults

ABSTRACT Depression remains a critical mental health challenge worldwide, particularly among young adults. Traditional assessment methods often raise privacy concerns and can heighten psychological resistance. To overcome these barriers, we introduce the Gaze and Facial Expressio...

Dissecting the NVIDIA Hopper Architecture through Microbenchmarking and Multiple Level Analysis

This study presents a comprehensive multi-level analysis of the NVIDIA Hopper GPU architecture, focusing on its performance characteristics and novel features. We benchmark Hopper’s memory subsystem, highlighting improvements in the L2 partitioned cache and global memory access c...

Extension, stability and smoothing of risk forms

Abstract Risk forms are real-valued functionals originally defined on the product of two spaces: the space of bounded Borel-measurable functions on a Polish space $$\mathfrak {D}$$ and the space of probability measures on $$\mathfrak {D}$$ . We extend the definition to the fibere...

Automated detection of morphologically diverse microplastics using ensemble deep learning

Microplastics in water emerge as hazardous materials that contaminate the environment and adversely impact public health. Current approaches for detecting and characterizing microplastics are manual and inefficient in time, cost, and labor. Recent advances in deep learning-based...

Early gait segments may be sufficient: fall risk assessment does not require steady-state walking

Falls remain a significant health concern for older adults, highlighting the need for efficient and accurate fall risk screening. Although wearable inertial measurement units provide accessible gait analysis, it remains unclear whether fall-history classification requires gait pa...

GPU-Accelerated Gate-Level Time-Based Power Analysis via Event-Density-Aware Partitioning and Kernel Fusion

Power analysis is crucial in modern chip design flow. Particularly, the time-based power analysis can provide fine-grained power consumption information to facilitate the diagnosis of power issues and guide power optimization accordingly. However, it may take tens of hours to con...

Gait Speed in Spinal Muscular Atrophy: A Key Vital Sign Linked to Strength and Fatigability

ABSTRACT Introduction/Aims Gait Speed (GS), a valid and reliable indicator of function and health in multiple populations, has not been explored in spinal muscular atrophy (SMA). The purpose of this study was to characterize GS and gait speed reserves (GSR), and explore associati...

Usual stochastic order of the third order statistics based on heterogeneous and statistically dependent random variables

Abstract The stochastic ordering of order statistics plays a central role in many fields involving probability and statistics. Over the past decade, significant progress has been made in ordering the first and second order statistics from heterogeneous or statistically dependent...

Carbonation of calcined Red Mud: Multifactor influences, reaction mechanism and environmental impact assessment

Red mud (RM) is a bulk alkaline solid waste generated by the alumina industry, carbonation can achieve alkalinity reduction and carbonation in red mud. However, its low reactivity limits further utilization. This study systematically investigates the effect of calcination modific...

Understanding Stress Levels in ICU Residents: The Role of Baseline Psychological State and Personal Characteristics

BACKGROUND: Intensive care unit (ICU) residents work in highly stressful environments characterized by clinical uncertainty and critically ill patients. During residency, physicians need to adapt to demanding workplace conditions while also navigating stressors related to their s...

Image-aware mixture of experts automates the detection of ovarian follicle rupture in a high-throughput ex vivo ovulation assay

An AI-based dynamic, image-aware Mixture-of-Experts (MoE) framework automates ex vivo ovulation detection and offers a highly accurate, scalable solution for studying the biology of ovulation, drug development, and reproductive toxicity testing.

Representation Stability in the Intrinsic Hyperplane Arrangements Associated to Irreducible Representations of the Symmetric Groups

Some of the most classically relevant Hyperplane arrangements are the Braid Arrangements B n and their associated complement spaces ℱ n . In their recent work, Tsilevich, Vershik, and Yuzvinsky [23] construct what they refer to as the intrinsic hyperplane arrangement within any i...

Large deviations of piecewise-deterministic Markov processes with application to stochastic calcium waves

Abstract We prove a large deviation principle for piecewise deterministic Markov processes (PDMPs). This is an asymptotic estimate for the probability of a trajectory in the large size limit. Explicit Euler–Lagrange equations are determined for computing optimal first-hitting-tim...

Legitimacy Signals and Investor Protections: Top-Tier Law Firms in Global Venture Capital Investments

Venture capital (VC) transactions are impeded by two frictions: entrepreneurs cannot credibly signal quality to investors, and investors cannot fully protect themselves against governance risks in incomplete–contract relationships. We argue that top-tier law firms address both fr...

Precision-guided gramian angular field for ECG-based cardiac arrhythmia detection utilizing binary-weight simplicial convolutional neural networks

Cardiac arrhythmia, characterized by abnormal heart rhythms, can be effectively identified using electrocardiogram (ECG) signals. However, the complex temporal and frequency patterns in ECG recordings make accurate diagnosis challenging. Recent advances in deep learning have sign...

An Injury-Conforming Dual-Layer Lung Sealant

Abstract Persistent pulmonary air leaks contribute to prolonged hospitalization. While existing hydrogel-based sealants can be used to stop air leaks, they may lack the high elasticity needed to accommodate lung deformation and mechanical cohesion. We developed an injury-conformi...